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Full text of "The manufacture and properties of iron and steel"

488
THE IRON INDUSTRY.
Bay, about 15 miles south of Baltimore, and ocean steamers bring ore from the mines in Cuba to the stockyard of the blast furnaces. The Pennsylvania Steel Company was the first to develop the Cuban deposits, its Jurugua mine having been opened in 1884. The Spanish-American Iron Company followed, but has since been bought by The Pennsylvania Steel Company. Table XXII-B shows the shipments from the Cuban mines since their opening, and the composition of the ore.
The steel plant at Sparrow's Point consists of two 18-ton converters, and these supply a mill which- rolls either rails or billets, the piece being finished from the ingot without reheating the bloom. This plant also has one of the largest shipyards in America. In the construction of the Bessemer plant there were two radical innovations introduced by its now president, F. W. Wood. The 'old swinging hydraulic ladle cranes were discarded, and a traveling crane introduced for the first time. The most radical change was in plac-
TABLEXXH-K. Shipments of Ore from Southeastern Cuba; gross tons.
Year.	Jurugua Iron Go.	Spanish American Iron Co.	Sigua Iron Co.	Cuban Steel Ore Co.	Total.
1884 to 1889 inol. av. per year. .	129,780				129.780
1890 to 1894 incl. av. per year..	291.464		4,088		295,552
1895 to 1899 inol. av. per year..	'   220,025	139,034			359,059
1900 .............................	154,871	292,001			446,872
1901 .............................	199,764	334,833		17,651	552,248
1902 .............................	221,039	455,105		23,590	699,734
1903 .........................	157,230	467,628			624,858
					
Total to end of 1903 .......	4,069,025	2,244,746	20,438	41,241	6,375,450 80,902
Aver, composition of cargoes.					
Fe ..............................	57.00	63.30	65.85	62 80	
s ............	0 288	0 092	0 037	0 211	
P ........... . ..... . .............	0.025	0.032	0.015	0.036	
					
ing the molds on trucks for casting. A" mechanical stri'Jiper then removes the molds from the ingots-in close-proximity-to. the heating furnaces. This arrangement is now familiar through its universal adoption. A jminor novelty in this plant, but an advance in line with more recent progress, was the installation of the